HomeBrandsFormlabsProfessional Resin 3D Printers122
F
122
Moderate
Formlabs · Professional Resin 3D Printers
Tank Lifetime Exceeded - Resin Tank Has Surpassed Maximum Layer Count
Quick Answer
Error code 122 on your Formlabs Professional Resin 3D Printers means: Tank Lifetime Exceeded - Resin Tank Has Surpassed Maximum Layer Count. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
Form 3+Form 3BLForm 3LForm 4Form 4BFuse 1+
Likely Causes
  1. Resin tank has been used beyond its rated lifespan (Formlabs recommends replacement based on layer count and resin type)
  2. Film on the tank bottom (LPU window for Form 3, release liner for Form 4) has degraded from UV exposure
  3. Resin tank film has developed clouding or micro-scratches affecting print quality
  4. Tank usage counter has reached the firmware-defined maximum threshold
How to Fix It
1
Check the tank usage information on the Formlabs Dashboard or printer touchscreen
2
Inspect the tank film for visible clouding, scratches, or damage when viewed against a light source
3
If the tank is still producing good prints, you can continue using it but monitor print quality closely
4
Replace the tank when print quality degrades (visible layer artifacts, poor surface finish, failed prints)
5
Order a replacement tank matching your printer model and resin type
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
Replacement resin tank (model and version specific)
Resin tank film replacement kit (if applicable for your tank version)
Related Error Codes
100101102110111
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